src/core/locale-setup.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright 2010 Lennart Poettering
   4 ***/
   5
   6 #include <errno.h>
   7 #include <stdlib.h>
   8 #include <string.h>
   9
  10 #include "env-util.h"
  11 #include "fileio.h"
  12 #include "locale-setup.h"
  13 #include "locale-util.h"
  14 #include "string-util.h"
  15 #include "strv.h"
  16 #include "util.h"
  17 #include "virt.h"
  18
  19 int locale_setup(char ***environment) {
  20         char **add;
  21         char *variables[_VARIABLE_LC_MAX] = {};
  22         int r = 0, i;
  23
  24         if (detect_container() <= 0) {
  25                 r = parse_env_file(NULL, "/proc/cmdline", WHITESPACE,
  26                                    "locale.LANG",              &variables[VARIABLE_LANG],
  27                                    "locale.LANGUAGE",          &variables[VARIABLE_LANGUAGE],
  28                                    "locale.LC_CTYPE",          &variables[VARIABLE_LC_CTYPE],
  29                                    "locale.LC_NUMERIC",        &variables[VARIABLE_LC_NUMERIC],
  30                                    "locale.LC_TIME",           &variables[VARIABLE_LC_TIME],
  31                                    "locale.LC_COLLATE",        &variables[VARIABLE_LC_COLLATE],
  32                                    "locale.LC_MONETARY",       &variables[VARIABLE_LC_MONETARY],
  33                                    "locale.LC_MESSAGES",       &variables[VARIABLE_LC_MESSAGES],
  34                                    "locale.LC_PAPER",          &variables[VARIABLE_LC_PAPER],
  35                                    "locale.LC_NAME",           &variables[VARIABLE_LC_NAME],
  36                                    "locale.LC_ADDRESS",        &variables[VARIABLE_LC_ADDRESS],
  37                                    "locale.LC_TELEPHONE",      &variables[VARIABLE_LC_TELEPHONE],
  38                                    "locale.LC_MEASUREMENT",    &variables[VARIABLE_LC_MEASUREMENT],
  39                                    "locale.LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
  40                                    NULL);
  41
  42                 if (r < 0 && r != -ENOENT)
  43                         log_warning_errno(r, "Failed to read /proc/cmdline: %m");
  44         }
  45
  46         /* Hmm, nothing set on the kernel cmd line? Then let's
  47          * try /etc/locale.conf */
  48         if (r <= 0) {
  49                 r = parse_env_file(NULL, "/etc/locale.conf", NEWLINE,
  50                                    "LANG",              &variables[VARIABLE_LANG],
  51                                    "LANGUAGE",          &variables[VARIABLE_LANGUAGE],
  52                                    "LC_CTYPE",          &variables[VARIABLE_LC_CTYPE],
  53                                    "LC_NUMERIC",        &variables[VARIABLE_LC_NUMERIC],
  54                                    "LC_TIME",           &variables[VARIABLE_LC_TIME],
  55                                    "LC_COLLATE",        &variables[VARIABLE_LC_COLLATE],
  56                                    "LC_MONETARY",       &variables[VARIABLE_LC_MONETARY],
  57                                    "LC_MESSAGES",       &variables[VARIABLE_LC_MESSAGES],
  58                                    "LC_PAPER",          &variables[VARIABLE_LC_PAPER],
  59                                    "LC_NAME",           &variables[VARIABLE_LC_NAME],
  60                                    "LC_ADDRESS",        &variables[VARIABLE_LC_ADDRESS],
  61                                    "LC_TELEPHONE",      &variables[VARIABLE_LC_TELEPHONE],
  62                                    "LC_MEASUREMENT",    &variables[VARIABLE_LC_MEASUREMENT],
  63                                    "LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
  64                                    NULL);
  65
  66                 if (r < 0 && r != -ENOENT)
  67                         log_warning_errno(r, "Failed to read /etc/locale.conf: %m");
  68         }
  69
  70         add = NULL;
  71         for (i = 0; i < _VARIABLE_LC_MAX; i++) {
  72                 char *s;
  73
  74                 if (!variables[i])
  75                         continue;
  76
  77                 s = strjoin(locale_variable_to_string(i), "=", variables[i]);
  78                 if (!s) {
  79                         r = -ENOMEM;
  80                         goto finish;
  81                 }
  82
  83                 if (strv_consume(&add, s) < 0) {
  84                         r = -ENOMEM;
  85                         goto finish;
  86                 }
  87         }
  88
  89         if (!strv_isempty(add)) {
  90                 char **e;
  91
  92                 e = strv_env_merge(2, *environment, add);
  93                 if (!e) {
  94                         r = -ENOMEM;
  95                         goto finish;
  96                 }
  97
  98                 strv_free_and_replace(*environment, e);
  99         }
 100
 101         r = 0;
 102
 103 finish:
 104         strv_free(add);
 105
 106         for (i = 0; i < _VARIABLE_LC_MAX; i++)
 107                 free(variables[i]);
 108
 109         return r;
 110 }